Master Bond EP42HT-2AO Two Component, Thermally Conductive, Heat Resistant Epoxy

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Master Bond EP42HT-2AO Two Component, Thermally Conductive, Heat Resistant Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced; Epoxy, High Temperature
Material Notes:	Master Bond Polymer System EP42HT-2AO is a room temperature curable, two component epoxy adhesive, sealant, coating and casting material featuring high temperature resistance and outstanding chemical resistance. It is widely used in a variety of potting and encapsulation applications where thermal conductivity is needed. Aside from being a superior adhesive, sealant and coating, EP42HT-2AO is castable to thicknesses exceeding 2-3 inches.
Vendors:	Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Viscosity	100 - 1000 cP	100 - 1000 cP	Part B
	45000 - 55000 cP	45000 - 55000 cP	Part A

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	>= 80	>= 80
Tensile Strength	>= 51.7 MPa	>= 7500 psi
Elongation at Break	>= 2.0 %	>= 2.0 %
Tensile Modulus	>= 3.45 GPa	>= 500 ksi
Shear Strength	>= 8.27 MPa	>= 1200 psi	Tensile lap, Al/Al

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	25.0 - 30.0 µm/m-°C	13.9 - 16.7 µin/in-°F
Thermal Conductivity	1.30 - 1.44 W/m-K	9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	204 °C	400 °F
Minimum Service Temperature, Air	-73.3 °C	-100 °F

Processing Properties	Metric	English	Comments
Cure Time	120 - 180 min @Temperature 23.9 °C	2.00 - 3.00 hour @Temperature 75.0 °F
	120 - 180 min @Temperature 93.3 °C	2.00 - 3.00 hour @Temperature 200 °F
Pot Life	60 - 90 min	60 - 90 min	100 gram mass
Shelf Life	6.00 Month	6.00 Month	in unopened containers

Descriptive Properties
Mixing Ratio (A to B)	100:40

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PMASTB255 / 132852

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